久久久久久久精品成人热小说,亚洲 欧美 激情 小说 另类,亚洲精品国产精华液,激烈 痉挛 抽搐 潮喷 MP4

News

How to maintain an electric soldering iron?

Release Date:2016-08-16
Electric soldering iron is the main tool used in welding engineering, mainly used to melt tin. To know how to maintain an electric soldering iron, you should know how many parts it is composed of and how to use it.
Electric soldering irons can be roughly divided into four parts:
1. Soldering iron tip and its fixing screw;
2. Heater;
3. Handle;
4. Iron power cord and its fixing screws, plug;
Simply put, the method of using a soldering iron tip is to apply an appropriate amount of solder to the soldering iron tip, touch the solder joint, and wait for the solder on the solder joint to completely melt and submerge the component lead. Then, gently lift the soldering iron tip up along the pins of the component and leave the solder joint.
There are many things to pay attention to when maintaining an electric soldering iron:
Before welding, the following points should be noted:
1. Clean the soldering iron tip thoroughly and remove any remaining solder slag on it;
2. Control the moisture content of the compressed sponge at a suitable humidity level, without dripping or being too low, and avoid welding defects such as damage to the soldering iron tip or failure to solder;
3. Ensure the safe grounding of the soldering iron.
During the operation of an electric soldering iron, the following points should be noted:
1. Do not leave the soldering iron tip in a high-temperature area for a long time to prevent surface electroplating cracking of the soldering iron tip;
2. Do not apply pressure to the soldering iron tip or rub against the welding point, as this can easily damage the soldering iron tip;
After using the soldering iron, please note the following:
1. Clean the soldering iron tip thoroughly;
2. Add a new layer of tin to the soldering iron tip. Plays a protective role.
3. The soldering iron tip should be cleaned regularly and any foreign objects inside the sleeve should be removed.
For the use of electric soldering iron, there are some precautions below:
1. Do not use soldering iron tips for work other than welding;
2. Do not strike the soldering iron tip;
3. Do not modify the welding table without authorization;
4. Do not use an electric soldering iron with water on your hands;
5. Keep the environment ventilated and deal with harmful gases that may occur during the welding process. If possible, smoke purifiers can be used.
展開(kāi)
狠狠躁天天躁夜夜躁婷婷| 永久免费无码AV在线网站| 老张和老李互相换女h| 啊灬啊别停灬用力啊爷小说| 99久久国产极品蜜臀av酒店 | 床震吃奶摸下成人a片在线观看 | 无码无套少妇毛多69XXX| 又大又粗又硬又爽又黄毛片| 用力挺进她的花苞| 亚洲欧美国产毛片在线| 男人添女人下部高潮视频| 奇米777四色欧美在线视频| 高大丰满肥熟妇丰满大白屁股| 无码免费一区二区三区| 妻子年轻出轨老了老公要离婚| 无码AV大香线蕉伊人久久| 亚洲国产成人精品无码区二本| 校园h学长含着粉嫩小奶| 女朋友水太多进去就软了| 亚洲国产成人久久一区二区三区 | 男人的好免费观看直播| 欧美色视频日本片免费| a片毛片免费看| 公交车强摁做开腿呻吟h视频| 国产成年无码久久久久毛片| 国产人妖乱国产精品人妖| 印度肥婆丰满bbw| 我半夜摸妺妺的奶摸到高潮| 吴北唐紫怡小说免费阅读| 黑人狂桶女人高潮嗷嗷叫小说| 久久久久亚洲精品无码网址色欲| 扒开老女毛荫荫的黑森林视频| 肉色超薄丝袜脚交一区二区| 国产日韩精品中文字无码| 18禁免费无码无遮挡不卡网站| 亚洲人妻| 全文辣肉h短篇春野小农民| 国精产品一区一区三区有限| 丰满老熟好大BBBXXX| 亚洲AV无码成人精品区狼人影院 | JZZIJZZIJ亚洲乱熟无码|